usb-knob/code.py

import board
import digitalio
import time
import usb_hid
from adafruit_hid.consumer_control_code import ConsumerControlCode
from adafruit_hid.consumer_control import ConsumerControl
from adafruit_hid.mouse import Mouse

clkPin = digitalio.DigitalInOut(board.GP2)
dtPin = digitalio.DigitalInOut(board.GP1)
dtPin.direction= digitalio.Direction.INPUT
clkPin.direction = digitalio.Direction.INPUT
clkPin.pull = digitalio.Pull.UP
dtPin.pull = digitalio.Pull.UP

global buttonPin
buttonPin = digitalio.DigitalInOut(board.GP15)
buttonPin.direction = digitalio.Direction.INPUT
buttonPin.pull = digitalio.Pull.UP

global consumer_control
consumer_control = ConsumerControl(usb_hid.devices)

global mode
mode = 0
global previousValue
previousValue = True

def control_volumen(pinStatus):
    if pinStatus == False:
        print('Volumen down')
        consumer_control.send(ConsumerControlCode.VOLUME_DECREMENT)
    else:
        print('Volumen up')
        consumer_control.send(ConsumerControlCode.VOLUME_INCREMENT)

def mute_volumen():
    consumer_control.send(ConsumerControlCode.MUTE)
    print('Mute')


while True:
    if buttonPin.value == False:
        if mode == 0:
            mute_volumen()
        else:
            mode = 0
            mute_volumen()
        print('Button pressed')
        time.sleep(0.5)
    else:
        if previousValue != clkPin.value:
            if clkPin.value == False:
                if mode == 0:
                    control_volumen(dtPin.value)
                else:
                    mode = 0
                    control_volumen(dtPin.value)
            previousValue = clkPin.value
            print('Rotary Status: ' + str(clkPin.value))